525500345 has 16 divisors (see below), whose sum is σ = 668487168. Its totient is φ = 395201280.

The previous prime is 525500231. The next prime is 525500351. The reversal of 525500345 is 543005525.

It is a happy number.

It is not a de Polignac number, because 525500345 - 2¹⁶ = 525434809 is a prime.

It is a super-2 number, since 2×525500345² = 552301225190238050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79352 + ... + 85718.

It is an arithmetic number, because the mean of its divisors is an integer number (41780448).

Almost surely, 2^525500345 is an apocalyptic number.

It is an amenable number.

525500345 is a deficient number, since it is larger than the sum of its proper divisors (142986823).

525500345 is a wasteful number, since it uses less digits than its factorization.

525500345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7360.

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 525500345 is about 22923.7942976288. The cubic root of 525500345 is about 806.9705181355.

The spelling of 525500345 in words is "five hundred twenty-five million, five hundred thousand, three hundred forty-five".